CN104058419A - Method and equipment for purifying activated clay - Google Patents

Method and equipment for purifying activated clay Download PDF

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Publication number
CN104058419A
CN104058419A CN201410299958.5A CN201410299958A CN104058419A CN 104058419 A CN104058419 A CN 104058419A CN 201410299958 A CN201410299958 A CN 201410299958A CN 104058419 A CN104058419 A CN 104058419A
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CN
China
Prior art keywords
inclined plate
atlapulgite
feed
swash plate
sedimentation groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410299958.5A
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Chinese (zh)
Inventor
韦藤幼
唐艳秀
童张法
梁福珏
梁福瑜
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Longan Guangxi Rui Feng Trade Co Ltd
Guangxi University
Original Assignee
Longan Guangxi Rui Feng Trade Co Ltd
Guangxi University
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Application filed by Longan Guangxi Rui Feng Trade Co Ltd, Guangxi University filed Critical Longan Guangxi Rui Feng Trade Co Ltd
Priority to CN201410299958.5A priority Critical patent/CN104058419A/en
Publication of CN104058419A publication Critical patent/CN104058419A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a method and equipment for producing activated clay and in particular relates to a method and equipment for purifying activated clay by adopting an inclined plate settling tank. According to the method, settling and purifying equipment is added in an existing activated clay production process, a complicated purification process of raw material bentonite is omitted, and the production efficiency is improved. The method comprises the following concrete steps: adding the inclined plate settling tank before filtering and dewatering in an original process, and continuously settling and purifying the activated clay of which the purity does not reach the requirements. Compared with the prior art, the method and the equipment have the characteristics that the deficiencies that a large quantity of water is added in the raw material purification process and water is difficultly removed are overcome, the production efficiency is high, waste acid can be recycled, and purification equipment is simple in structure, convenient to operate and low in manufacturing cost.

Description

A kind of method and apparatus of the atlapulgite of purifying
Technical field
The present invention relates to a kind of method and apparatus of producing atlapulgite, particularly adopt the method and apparatus of inclined plate sedimentation groove purification atlapulgite.
Background technology
Atlapulgite is taking wilkinite as raw material, a kind of environmental protection mineral material of preparing taking mineral acid as properties-correcting agent.The production of atlapulgite mainly adopts wet processing, and its technical process is: the raw ore → removal of impurities → defibrination → removal of impurities → acid activation of sieving → point acid → washing → filter dehydration → oven dry pulverizing → powdered activated carclazyte.At present, most bentonite ores are along with the increase of recovery time, and wilkinite grade declines day by day, the atlapulgite difficult quality guarantee of output.In order to ensure the quality of products, low-grade bentonite raw material often needs to purify.The purifying technique matching with the wet processing operations such as stirring, slurries sedimentation purification and concentrate slurry thickening that can add water after original technique is sieved removal of impurities, because dehydration is more difficult, point spent acid that acid produces almost cannot recycle, cause production efficiency low, and sour consumption strengthens.Thereby the low wilkinite of great majority tastes is because cost for purification is high, complex process goes out of use, and causes the waste of bentonite resource.Therefore, develop a kind of low cost, what production efficiency was high can utilize the method and apparatus of low-grade bentonite ore deposit production atlapulgite very necessary.
Summary of the invention
The object of the invention is in order to utilize low-grade bentonite ore to produce atlapulgite, simplify purifying technique simultaneously thereby proposed a kind of method and apparatus of the atlapulgite product of purifying, the method increases sedimentation equipment for purifying in existing activated clay production technique, thereby save complicated feedstock purification operation, improve production efficiency, and low-grade bentonite ore deposit is utilized effectively.
The present invention realizes like this, before original atlapulgite technique filter dehydration, add inclined plate sedimentation groove equipment, purity is not reached to the atlapulgite of requirement, carry out continuous sedimentation purification operations, be characterized in utilizing the difference of atlapulgite particle and impurity particle density and granularity, enter slurry concentration and the velocity of flow of inclined plate sedimentation groove by control, density and the larger impurity of granularity are settled down at subsider, and the overflow of subsider top obtains density and the less atlapulgite suspension of particle.
The equipment adopting according to aforesaid method comprises homogeneous steel basin, feeding pump, inclined plate sedimentation groove, transh pump and atlapulgite mashing pump.Slurry from washing room is transported in inclined plate sedimentation groove by feeding pump after homogeneous steel basin stirs, the impurity material that inclined plate sedimentation trench bottom is discharged is transported away by transh pump, and inclined plate sedimentation groove top overflow product is delivered to and is dehydrated workshop section by atlapulgite mashing pump.
Above-described inclined plate sedimentation groove is a kind of sedimentation device being made up of feed distributor, swash plate, overflow canal, product-collecting groove and bucket.The above part profile of bucket is square, rectangular parallelepiped or right cylinder, adopts reverse flow operation.Bucket is positioned at the bottommost of whole subsider, and swash plate is positioned at the top in bucket district, each swash plate parallel arrangement, feed distributor is between swash plate and bucket, overflow canal is positioned at top, swash plate district, and its port connects overflow discharge mouth, and overflow discharge mouth lateral outer arranges product-collecting groove.The everywhere entrance of swash plate delivered to slurry equably by slurry by feed distributor, slurry is after swash plate separates, and thick particles settling, to plate, is then slipped to subsider bottom; Thin particle flows to swash plate upper end with water and exports then overflow and enter product-collecting groove, obtains the atlapulgite product that purity is higher.
The present invention is compared with original technology, and its outstanding feature and progress are:
1, the present invention purifies atlapulgite compared with purification raw material wilkinite, has overcome the purification raw material wilkinite deficiencies such as many, dehydration difficulty that add water, and has the advantages such as production efficiency is high, spent acid reusable edible.
2, equipment for purifying structure of the present invention is simpler, easy to operate than the bentonitic device structure of purification raw material, and device fabrication cost is low.
Brief description of the drawings
Fig. 1 is technical process of the present invention and equipment drawing
Fig. 2 is the feed distributor part sectioned view of inclined plate sedimentation groove
Fig. 3 is the product-collecting groove partial top view of inclined plate sedimentation groove
Technical process shown in Fig. 1, atlapulgite slurry enters homogeneous steel basin (1) by washing procedure, be transported to inclined plate sedimentation groove (3) by feeding pump (2) again, slurry is after inclined plate sedimentation groove separates, thick particles settling is to swash plate (5), then be slipped to subsider bottom and discharged by bucket (12), then pass through transh pump (9) and be transported to waste tank; Above subsider, be the atlapulgite suspension that density is light, particle is less, enter overflow canal (6) by the overflow of subsider top and flow into product-collecting groove (7) collection by overflow discharge mouth, then be transported to and dehydrate workshop section through atlapulgite mashing pump (8).
The equipment that this invention adopts comprises homogeneous steel basin (1), feeding pump (2), inclined plate sedimentation groove (3), transh pump (9) and atlapulgite mashing pump (8).Homogeneous steel basin (1) is connected with feeding pump (2), feeding pump (2) is connected with inclined plate sedimentation groove (3), and inclined plate sedimentation groove (3) is connected with atlapulgite mashing pump (8) with transh pump (9).
Wherein inclined plate sedimentation groove (3) is made up of feed distributor (4), swash plate (5), overflow canal (6), product-collecting groove (7) and bucket (12).Bucket (12) is positioned at the bottommost of whole subsider, swash plate (5) is positioned at the top in bucket district, each swash plate parallel arrangement, feed distributor (4) is positioned between swash plate (5) and bucket (12), feed distributor (4) is apart from bucket (12) top 30-100mm, apart from swash plate lower end 30-100mm; Overflow canal is positioned at top, swash plate district, and its one or both ends connect respectively overflow discharge mouth.The pitch angle of swash plate (5) is 45-80 degree, and the width of swash plate is 300-1000mm, and adjacent two swash plate vertical ranges are 40-150mm.The cone angle of bucket is 30-80 degree, and bucket is shaped as coniform or icicle shape.
It shown in Fig. 2, is the broken section vertical view of the feed distributor (4) of inclined plate sedimentation groove, feed distributor (4) is made up of the feed-pipe of even tube wall perforate under 2-20 root, on feed-pipe, the diameter of institute's perforate is 3-6mm, the width between centers of Kong Yukong is 50-100mm, parallel arrangement between feed-pipe, adjacent feed-pipe distance is 150-500mm.Be positioned on the feed-pipe of inclined plate sedimentation groove outside four-way (10) and ball valve (11) are housed, the dredging when facilitating fed material from being blocked.
Shown in Fig. 3, be the partial top view of overflow canal (6) and the product-collecting groove (7) of inclined plate sedimentation groove, the upper limb of 2-20 interval 150-500mm is that one end of zigzag overflow canal (6) is connected with product-collecting groove (7).Product overflow flow into product-collecting groove (7) through overflow canal (6).
Embodiment
Based on embodiment, the present invention is described in detail.
The present embodiment inclined plate sedimentation groove used illustrates: the present embodiment inclined plate sedimentation groove concrete structure parameter used is: the pitch angle of swash plate (5) is 60 degree, and the width of swash plate is 300mm, and adjacent two swash plate vertical ranges are 50mm.The cone angle of bucket is 60 degree, and bucket is shaped as icicle shape.Feed distributor (4) is made up of the feed-pipe of 2 lower even tube wall perforates, on feed-pipe, the diameter of institute's perforate is 4mm, the width between centers of Kong Yukong is 50mm, parallel arrangement between feed-pipe, adjacent feed-pipe distance is 200mm, and the upper limb of 2 interval 200mm is zigzag overflow canal (6).
The explanation of the present embodiment method:
Suspension washing procedure being come by feeding pump is transported to continuous sedimentation separating-purifying in inclined plate sedimentation groove by different in flow rate and different mass concentration, thick particles settling is discharged by bucket to being then slipped to subsider bottom on swash plate, then is transported to waste tank by transh pump; Above subsider, be the atlapulgite suspension that proportion is light, particle is less, its overflow canal overflow by subsider top enters product-collecting groove through overflow discharge mouth, then is delivered to and dehydrates workshop section through atlapulgite mashing pump.Analyze and measure median size, percent sand, percent of decolourization and the product recovery rate of product.
In an embodiment, the measuring method of the median size of atlapulgite, percent sand, percent of decolourization, product recovery rate is as follows:
(a) mensuration of median size
Use dynamic image particles distribution instrument to carry out particle size distribution analysis to atlapulgite, the D50 that the median size of particle provides from dynamic image granularity distribution instrument determines.
(b) mensuration of product percent sand
First definite mass fraction of solids that enters subsider suspension is w, then gets m 1gram atlapulgite suspension sample, is placed in 200 mesh sieve clear water washings, collects the sand of staying in sieve, under 120 °, dries 4h, until moisture all dries, measures the sand m after oven dry with balance 2gram.Percent sand utilizes formula m 2/ (w m 1) * 100% calculate.
(c) mensuration of percent of decolourization
Rape oil is decoloured with carclazyte, method is to be 0.5% to add in 100mL Erlenmeyer flask carclazyte and rape oil according to mass ratio, after being 80 °, magnetic agitation 30min, temperature takes out, centrifugation, get 2 grams, upper strata edible vegetable oil in 10ml colorimetric cylinder, the hexanaphthene isopropyl alcohol mixture that is 1: 1 with mass ratio is diluted to scale.The absorbance of measuring the rear rape oil of decolouring with ultraviolet-visible pectrophotometer is A 1; The absorbance of measuring no bleaching rape oil by above-mentioned steps is A 2.Percent of decolourization is by (A 2-A 1)/A 2* 100% calculates.
(d) mensuration of product recovery rate
Measure the massfraction w of the liquid-solid body of raw pulp 1, then measure the mass fraction of solids w of the atlapulgite product solution after purification 2, according to formula w 2/ w 1* 100% calculates product recovery rate.
[embodiment 1]
The atlapulgite suspension that the needs of a certain batch are purified, measures its percent sand, particle median size, and percent of decolourization, data results is in table 1.
[embodiment 2]
Adding water and adjusting the suspension solid masses concentration of embodiment 1 is 7%, then by feeding pump, slurries is squeezed in inclined plate sedimentation groove and is purified, and collects product at collector, product is analyzed, different feed flows the results are shown in Table 2.
[embodiment 3]
Adding water and adjusting the suspension solid masses concentration of embodiment 1 is 10%, then by feeding pump, slurries is squeezed in inclined plate sedimentation groove and is purified, and collects product at collector, product is analyzed, different feed flows the results are shown in Table 3.
[embodiment 4]
Adding water and adjusting the suspension solid masses concentration of embodiment 1 is 13%, then by feeding pump, slurries is squeezed in inclined plate sedimentation groove and is purified, and collects product at collector, product is analyzed, different feed flows the results are shown in Table 4.
The table 1 atlapulgite data of not purifying
Table 2 is given the purification data that ore deposit massfraction is 7%
Table 3 is given the purification data that ore deposit massfraction is 10%
Table 4 is given the purification data that ore deposit massfraction is 13%

Claims (9)

1. the method for purification of an atlapulgite, it is characterized in that increasing sedimentation equipment for purifying in existing activated clay production technique, specifically, before original atlapulgite technique dehydrates, add inclined plate sedimentation groove, the atlapulgite that purity is not reached to requirement carries out continuous sedimentation purification operations.
2. method according to claim 1, it is characterized in that utilizing the difference of atlapulgite particle and impurity particle density and granularity, enter slurry concentration and the velocity of flow of inclined plate sedimentation groove by control, density and the larger impurity of granularity are settled down at subsider, and the overflow of subsider top obtains density and the less atlapulgite suspension of particle.
3. method according to claim 1, it is characterized in that adopted equipment comprises homogeneous steel basin (1), feeding pump (2), inclined plate sedimentation groove (3), transh pump (9) and atlapulgite mashing pump (8), slurry from washing room is transported in inclined plate sedimentation groove (3) by feeding pump (2) after homogeneous steel basin (1) stirs, the impurity material that discharge inclined plate sedimentation groove (3) bottom is transported away by transh pump (9), inclined plate sedimentation groove (3) top overflow product is delivered to and is dehydrated workshop section by atlapulgite mashing pump (8).
4. the inclined plate sedimentation groove (3) that method according to claim 1 adopts, is characterized in that being made up of feed distributor (4), swash plate (5), overflow canal (6), bucket (12) and product-collecting groove (7).Bucket (12) is positioned at the bottommost of whole subsider, swash plate (5) is positioned at the top in bucket district, each swash plate parallel arrangement, feed distributor (4) is positioned between swash plate (5) and bucket (12), overflow canal (6) is positioned at swash plate (5) top, and overflow canal (6) port connects the product-collecting groove (7) of lateral outer.
5. inclined plate sedimentation groove according to claim 4 (3), its feed distributor (4) is made up of the feed-pipe of even tube wall perforate under 2-20 root, feed distributor (4) is apart from bucket (12) top 30-100mm, apart from swash plate lower end 30-100mm.
6. inclined plate sedimentation groove according to claim 4 (3), on the feed-pipe of its feed distributor (4), the diameter of institute's perforate is 3-6mm, the width between centers of Kong Yukong is 50-100mm, parallel arrangement between feed-pipe, and adjacent feed-pipe distance is 150-500mm.
7. inclined plate sedimentation groove according to claim 4 (3), its feed distributor (4) is positioned on the feed-pipe of inclined plate sedimentation groove outside four-way (10) and ball valve (11) is housed.
8. inclined plate sedimentation groove according to claim 4 (3), the pitch angle of its swash plate (5) is 45-80 degree, and the width of swash plate is 300-1000mm, and adjacent two swash plate vertical ranges are 40-150mm.
9. inclined plate sedimentation groove according to claim 4 (3), the cone angle of its bucket is 30-80 degree, bucket is shaped as coniform or icicle shape.
CN201410299958.5A 2014-06-30 2014-06-30 Method and equipment for purifying activated clay Pending CN104058419A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107814388A (en) * 2016-09-12 2018-03-20 先声药业有限公司 A kind of preparation method of montmorillonite
CN111392884A (en) * 2020-03-13 2020-07-10 国家能源集团宁夏煤业有限责任公司 Coal gasification system, gasification black water treatment equipment and method

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4351733A (en) * 1980-11-15 1982-09-28 Robert Bosch Gmbh Process and apparatus for purification of industrial waste water
CN101239338A (en) * 2007-11-20 2008-08-13 昆明理工大学 High-frequency vibrating multi-channel integration sloping plate grading thickening equipment
CN102527103A (en) * 2012-03-07 2012-07-04 宜兴市环球水处理设备有限公司 Tilted plate precipitator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351733A (en) * 1980-11-15 1982-09-28 Robert Bosch Gmbh Process and apparatus for purification of industrial waste water
CN101239338A (en) * 2007-11-20 2008-08-13 昆明理工大学 High-frequency vibrating multi-channel integration sloping plate grading thickening equipment
CN102527103A (en) * 2012-03-07 2012-07-04 宜兴市环球水处理设备有限公司 Tilted plate precipitator

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107814388A (en) * 2016-09-12 2018-03-20 先声药业有限公司 A kind of preparation method of montmorillonite
CN111392884A (en) * 2020-03-13 2020-07-10 国家能源集团宁夏煤业有限责任公司 Coal gasification system, gasification black water treatment equipment and method

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